widen
v[I, Tn]
(cause sth to) become wider (使某物)变宽; 加宽; 放宽
The road is being widened.这条路正在拓宽.
He wants to widen his knowledge of the industry. 他想扩充自己在这一行业的知识.
Most of us are able to solve most of our problems. Often, all we need is a good friend who will listen to us while we talk things through. If friends can take turns to listen to each other well, life will be better!
For his lifentime's work in studying the communication of animals, including honey bees, Professor Karl von Frisch was given a Nobel Prize in 1973, which he shared with two other scientists. He died in 1982.